As the error says, you have to have an initial condition value for each equation in the integrated system of equations. Your function has 151 return values it seems but you only provided a single initial condition.
Whether that's an error in the definition of the function that is intended to only have one equation so it's wrong or whether the function is right and you need zeros(151,1) as the IC vector is indeterminate from the data provided--only you know what is the actual problem definition.
